{"id":14019,"date":"2025-12-21T10:00:00","date_gmt":"2025-12-21T09:00:00","guid":{"rendered":"https:\/\/www.triopsgalaxy.de\/der-goldfisch\/"},"modified":"2025-12-24T11:02:00","modified_gmt":"2025-12-24T10:02:00","slug":"the-goldfish","status":"publish","type":"post","link":"https:\/\/www.triopsgalaxy.de\/en\/the-goldfish\/","title":{"rendered":"The goldfish: an underrated classic in aquatics"},"content":{"rendered":"\n

Hardly any other fish is as deeply rooted in our collective memory as the goldfish. It is considered the quintessential aquarium fish, is often given as a gift, kept in small tanks or mistakenly regarded as undemanding. In reality, the goldfish is an extremely robust, intelligent and long-lived carp fish with an amazing history and clear requirements in terms of husbandry and care. Anyone who is seriously interested in goldfish or even considering breeding them should be fully aware of their biological and ecological needs. In this blog article, I describe the amazing nature of the goldfish.<\/p>\n\n\n\n

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From wild fish to domesticated animal: the origins of the goldfish<\/h2>\n\n\n\n

The goldfish, whose scientific name is Carassius auratus, originates from East Asia. Its ancestors lived in slow-flowing waters, lakes and floodplains in China. Over a thousand years ago, humans began to selectively breed individual colour mutations. Golden and reddish colours were considered particularly valuable and were initially kept in temple complexes and later in private ponds.<\/p>\n\n\n\n

Over the centuries, the goldfish became one of the first domesticated fish. The species spread worldwide via Japan and eventually Europe. Today, there are numerous breeds, some of which differ significantly from the original wild form. Despite all the breeding variations, the goldfish is still a close relative of the native crucian carp and thus a true carp fish from a biological point of view.<\/p>\n\n\n\n

Size, life expectancy and astonishing anatomy<\/h3>\n\n\n\n

A widespread myth claims that goldfish remain small and adapt to the size of their aquarium. In fact, the opposite is true. Goldfish can reach considerable sizes when kept in a species-appropriate manner. In aquariums, they often grow to between 20 and 30 centimetres in length, and even larger in garden ponds. Their growth depends on genetic factors, water quality, nutrition and, above all, the amount of space available.<\/p>\n\n\n\n

Their life expectancy is also often underestimated. Goldfish can easily live for ten to twenty years, and in some cases even significantly longer. Historically documented specimens have reached an age of over 40 years. Anyone who decides to keep goldfish is therefore choosing a long-term pet.<\/p>\n\n\n\n

Anatomically, goldfish have some special features. They do not have a stomach, but a continuous digestive tract. Food is therefore processed continuously, which explains why goldfish eat frequently and produce a comparatively large amount of excrement. Their teeth are not located in their mouths, but in their throats as so-called pharyngeal teeth. They also have an excellent sense of smell and taste and are more capable of learning than is often believed.<\/p>\n\n\n\n

Not all goldfish are the same: breeds and differences<\/h3>\n\n\n\n

Numerous varieties have been developed over the course of breeding history. A basic distinction is made between slender, natural forms and highly bred varieties. Elongated varieties such as the Comet or Shubunkin are strong swimmers and are particularly well suited to large aquariums or ponds. Highly bred varieties such as veil tails, orandas or telescope eyes are characterised by special body shapes, long fins or altered eyes, but are usually more sensitive.<\/p>\n\n\n\n

It is important for breeders to know that highly bred varieties require more care. They swim more slowly, are more susceptible to disease and should not be kept with very active or competitive conspecifics.<\/p>\n\n\n\n

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